2015 Hurlstone Trial M/C Help (1 Viewer)

[He]

Could someone please do me a massive favour and post their answers for the multiple choice section of this exam, the answers seem to skip them.

Thanks very much

View attachment 2015 Hurlstone Agricultural HS Ext 2.pdf

 

[Drsoccerball]

1) D
2) D
3) A
4) B
5) D
6) B
7) C
8) A
9) A
10) C

For 8 im 50 % sure im right

 

[He]

Thanks, I got the same as you except for 9 which I put as C. I don't really know how to do it.

 

[Ekman]

1) D
2) D
3) A
4) B
5) D
6) B
7) C
8) A
9) A
10) C

For 8 im 50 % sure im right

For 8, A is correct because when e->0, the ellipse can either go taller OR go narrower. It doesn't do both at the same time. The reasoning behind this is because as e->0, b->a or a->b (doesn't really matter which), hence the ellipse can change shape in only one way. But for 9 I got C, because the transverse axis is the distance between the two x-intercepts, and the intercepts are at (4,0) and (-4,0)

 

[Physicklad]

yeh 9 is C

 

[Drsoccerball]

For 8, A is correct because when e->0, the ellipse can either go taller OR go narrower. It doesn't do both at the same time. The reasoning behind this is because as e->0, b->a or a->b (doesn't really matter which), hence the ellipse can change shape in only one way. But for 9 I got C, because the transverse axis is the distance between the two x-intercepts, and the intercepts are at (4,0) and (-4,0)

In the dictionary it says two foci not intercepts?

 

[Ekman]

In the dictionary it says two foci not intercepts?

Link it, because every maths site says its between the two intercepts.

The best way to remember it is:
Transverse axis: 2a
Conjugate axis: 2b

 

[Drsoccerball]

Link it, because every maths site says its between the two intercepts.

The best way to remember it is:
Transverse axis: 2a
Conjugate axis: 2b

ceebs id rather just agree :L

 

[jonathan_lam]

Most of us had to gamble question 9 because we forgot which one was the transverse axis ._.
Also follow me on instagram https://instagram.com/jonathanlam13/ and you can find this https://instagram.com/p/7Z6hr4hU1Z/?taken-by=jonathanlam13
//shameless advertising

 

[Drsoccerball]

Most of us had to gamble question 9 because we forgot which one was the transverse axis ._.
Also follow me on instagram https://instagram.com/jonathanlam13/ and you can find this https://instagram.com/p/7Z6hr4hU1Z/?taken-by=jonathanlam13
//shameless advertising

Just went through your instagram :L .......................................................................................................

 

[kawaiipotato]

lol random advertisement to an instagram on a math thread on boredofstudies

 

[jonathan_lam]

lol random advertisement to an instagram on a math thread on boredofstudies

The answers to the multiple choice are on my instagram though

 

[Drsoccerball]

"Follow or die"

 

[dan964]

updated copy, with MC answers:
https://9eeba4054ee764a743f35bb25b5...e/4U/Hurlstone 2015 4U Trials & Solutions.pdf

 

[kawaiipotato]

The answers to the multiple choice are on my instagram though

oh i was in your truongs class before

 

[He]

Thanks for your answers guys. Also Jonathan, you go to Hurlstone? What were the marks like that people got for this paper? To me it seems quite easy compared to a lot of other papers I have done.

 

[jonathan_lam]

Thanks for your answers guys. Also Jonathan, you go to Hurlstone? What were the marks like that people got for this paper? To me it seems quite easy compared to a lot of other papers I have done.

Most people got like 90+
We also didn't cover mechanics and volumes at the time of the exam rip

 

[snail489]

Thanks for your answers guys. Also Jonathan, you go to Hurlstone? What were the marks like that people got for this paper? To me it seems quite easy compared to a lot of other papers I have done.

iirc it was like 99 for rank 1, 96 for rank 2, 95 for rank 4, 94 for rank 8, 93 for rank 10 (cohort of like 50 people) and idk after that. Everyone scored really highly in this exam

Most of us had to gamble question 9 because we forgot which one was the transverse axis ._.

me too

 

[jonathan_lam]

iirc it was like 99 for rank 1, 96 for rank 2, 95 for rank 4, 94 for rank 8, 93 for rank 10 (cohort of like 50 people) and idk after that. Everyone scored really highly in this exam

median was like 87 or something

 

[laters]

median was like 87 or something

look at this hahs circle jerk, our exams are essentially textbook questions + some easy past hsc questions